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Scenery-manoeuvring apparatus

a manoeuvring and apparatus technology, applied in the direction of lifting devices, lifting equipment, theatre/circus, etc., can solve the problems of difficult to adapt difficult to meet the needs of people, and difficult to operate, etc., to achieve the effect of easy adaptation to the variation in load weigh

Active Publication Date: 2020-01-21
HUCHEZ TREUILS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables efficient and adaptable movement of scenery with reduced manual effort, using a compact and cost-effective setup that mimics traditional counterweight systems, allowing for quick familiarization and operation by theatre personnel.

Problems solved by technology

That operation is arduous and requires several people to be present.
Nevertheless, the weight of a piece of theatre scenery can be very high (up to 300 kilograms (kg)), such that replacing counterweights by an electric motor involves using an electric motor of large size, which is generally not compatible with the space available, and which is of high cost.

Method used

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  • Scenery-manoeuvring apparatus
  • Scenery-manoeuvring apparatus
  • Scenery-manoeuvring apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0024]With reference to FIGS. 1 to 4, the moving apparatus in the invention comprises a reference member 1 that comprises a top plate 2 and a bottom plate 3 that are connected to each other by tie-rods 4.

[0025]An operating line 11 has one end connected to an attachment point 2.1 of the top plate 2 and an opposite end connected to an attachment point 3.1 of the bottom plate 3. At both ends of the loop formed in this way, the operating line passes over a pulley 15 that is carried to rotate freely by cheekplates 16 having holes 17 for fastening them to the wall. In a variant, the bottom pulley 15 need not be fastened to the wall so that the weight of said pulley exerts tension on the operating line 11.

[0026]The apparatus includes a movement device comprising a carriage 5 mounted to slide relative to the reference member 1 by means of tubes 6 engaged on the tie-rods 4. The carriage 5 also has two plates 7 fastened to the tubes 6 on either side of the plate 1 and two plates 8 fastened to...

second embodiment

[0041]FIG. 5 shows the invention that, like the above embodiment, relates to apparatus for moving a load relative to a carrier structure. The movement apparatus shown in FIG. 5 is similar to that shown in FIGS. 1 to 4 with the exception that the reference member in this embodiment is hinged.

[0042]The movement apparatus thus has a reference member 101 having a top plate 102 and a bottom plate 103 that are connected together by a single tie-rod 104, and each of which is connected to the carriage 105 via a pivot hinge 102.2, 103.2 so as to form a deformable parallelogram. The top plate 102 and the bottom plate 103 are weighted behind their pivot points 102.2, 102.2 in order to balance their weights.

[0043]More precisely, an operating line 111 has one end connected to an attachment point 102.1 of the top plate 102 and an opposite end connected to an attachment point 103.1 of the top plate 103. The apparatus includes a movement device comprising the carriage 105 mounted to slide along the...

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PUM

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Abstract

The apparatus for moving a load includes a carrier cable having a first end connected to the load, and a second end connected to a movement device, the movement device including an operating line connected to a movement carriage. An electric motor is configured to move the carriage as a function of a force exerted on the operating line.

Description

[0001]The present invention relates to apparatus for moving a load, and more particularly but not exclusively, to apparatus for moving theatre scenery.BACKGROUND OF THE INVENTION[0002]In order to change the scenery in a theatre, it is common practice to use moving apparatus comprising an operating line having its end fastened to a carriage that is connected to the load by a carrier cable. With theatre scenery, the apparatus has a plurality of carrier cables, each having one end connected to the carriage, with their opposite ends being connected at various points to a beam carrying the scenery. In order to make moving easier, it is known to use counterweights that are fastened to the carriage and that are of weight equal to the weight of the load. That structure makes it easy to move the load manually by means of the operating line. Nevertheless, when it is necessary to change scenery of given weight, for other scenery of weight that is different from that of the preceding scenery, i...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A63J1/02A63J5/00
CPCA63J1/02A63J1/028B66D1/60B66F7/02
Inventor LECLERCQ, MATHIEUDECHAMPS, ALEXANDRE
Owner HUCHEZ TREUILS